qnimbus

For my thesis, I have to make a thrust vectoring nozzle that's controllable with a joystick.At the same time, an artificial horizon or attitude indicator has to show the corresponding attitude of the plane.

I have sorted out the part how to control the nozzle, but I need your advice about controlling the artificial horizon.The artificial horizon, works with 2 stepper motors that move the pitch and roll position of the indicator.

The artificial horizon is this one: http://www.simw.com/attitude-indicator-black-blue-gsa-34.html?___store=snl&___from_store=senwith these connectors on the back:

Can someone explain to me how I should connect the arduino to this connector?The stepper motors are powered through the white molex connector in the middle.

I'm a complete beginner in serial communication and I hope you guys could help me outThanks!

Note that the number of serial channels available differ depending on the board. Personally I play with the Mega 2560, but I've only needed the i2c port so far (a snap to use), although I'm about to play with reading my foretrex 201 across one of the 232 ports with the use of a little Maxim board.